* '''Great stock dinosaurs:''' [[note]]real or alleged dinosaurs[[/note]] ** '''Tyrannosaurus rex''': The [[TyrannosaurusRex absolute protagonist]] of the last WWD episode. It's also the series' only tyrannosauroid (unless ''Ornitholestes'' proves to be one).** '''Apatosaurus aka Brontosaurus''': Averted initially. The sauropod which appears in "Time of the Titans" is the much longer relative ''[[StockDinosaursTrueDinosaurs Diplodocus]]'' (plus ''[[StockDinosaursTrueDinosaurs Brachiosaurus]]'' making a cameo); but then producers felt sorrow because of this choice, and added ''Apatosaurus'' in the "Ballad of Big Al" special. Despite this we can easily forgive them, since it is called ''Apatosaurus'' instead of ''Brontosaurus'' and has the correct head-shape and whip-like tail, at last...** '''Triceratops:''' Similar to the example above. It makes only a very, very minor role in "Death of a Dynasty" (''only a corpse'' shows up at all); but later the producers did look back in ''Series/PrehistoricPark'' and ta-da! ''Triceratops'' vs ''Tyrannosaurus'' fight! (the same thing that the TalkingHeads called dumb in the making off of WWD!)*** Its relative ''[[UsefulNotes/PrehistoricLifeCeratopsids Torosaurus]]'' appears instead of ''Triceratops'' in WWD because the former is arguably [[RuleOfCool cooler-looking]] due to its larger frill. Ironically, it's now theorized that they're the same animal.** '''Stegosaurus:''' Appears in both the episodes located in Late Jurassic North America, but interestingly, it has only minor roles in both shows, and it's depicted as a rather BadAss animal, contrary to the "predestined loser" TooDumbToLive we see traditionally.** '''Dromaeosaurids''': All three species which have contributed to create the pop-cultural image of the "[[RaptorAttack raptor]]" show up in some way. WWD features the gigantic ''Utahraptor''. It's reconstructed with the body and head shape of ''Deinonychus'' (the most historically important dromaeosaurid in paleontology, not to mention the ''real'' protagonist in the ''Franchise/JurassicPark'' series). Ironically, only ''Velociraptor'' is missing (justified, since it lived in Asia while the original WWD did not show Asian dinos).*** However, it appears later in one of the two specials of ''Chased By Dinosaurs'' ("The Giant Claw"). This program was allegedly made to show the huge-clawed ''[[UsefulNotes/PrehistoricLifeBirdlikeTheropods Therizinosaurus]]'', but some people [[WildMassGuessing suspect]] the ''real'' goal just was to show [[ViewersAreMorons the animal whose name identifies the whole dromaeosaur group in pop-consciousness]]. ** '''Pteranodon''': The iconic flying reptile is totally missing in WWD, because its habitat wasn't recreated in any episode; again, producers felt sad about that and later depicted ''Pteranodon'' in the other ''Chased by Dinosaurs'' special in a [[MisplacedWildlife totally misplaced way]], living in South instead of North America and [[AnachronismStew in the Middle instead of the Late Cretaceous]][[note]]Somewhat justified as, at the time, what was thought to be Pteranodon remains were found in South America; nowadays said bones are thought to belong to a close relative[[/note]]. They later showed the animals in the right place in ''Sea Monsters''. A pterosaur that superficially resembles ''Pteranodon'' appeared briefly in "Giant of the Skies" (the ''Ornithocheirus'' steals some food from it) but its exact species was never clarified and it's replaced by another ''Ornithocheirus'' in the book.* '''Other stock dinosaurs:''' [[note]]again, real or alleged dinosaurs[[/note]]** '''Allosaurus:''' ''Allosaurus'' has only a minor role in "Time of The Titans" (although it appears, obviously, as the BigBad of its habitat). But then it becomes the great protagonist of "The Ballad of Big Al", a show appropriately dedicated to a specific ''Allosaurus''. For the first time visual media has done justice [[PoorMansSubstitute to its species]] at last; here it appears as a predator even more lethal than ''Tyrannosaurus'' despite being smaller, because of its capability to kill the largest sauropods (while ''T. rex'' only killed the relatively smaller hadrosaurs and ceratopsians: it did have a sauropod in its habitat, but its crushing teeth work against it in a severe case of CripplingOverspecialization).** '''Diplodocus, Brachiosaurus and the "Largest Sauropod"''': ''Diplodocus'' was chosen as the main sauropod both in "Time of the Titans" and "Big Al" because it was longer than ''Apatosaurus'' and thus [[RuleOfCool more striking]]; the same thing about the classically "Woah he's the largest dino!" ''Brachiosaurus'', although this one makes only very brief cameos (it is actually modeled upon its African relative ''[[UsefulNotes/PrehistoricLifeSauropods Giraffatitan]]'', but this is justified since the the division in different genera was not widely accepted [[ScienceMarchesOn before 2009]]). Talking about the "modern" record-holding sauropods, the special "Land of Giants" was made just to show the one which was detaining the record in the year the episode was created (2001): ''Argentinosaurus''. However it did not become a true stock animal after that, unlike its predator ''[[StockDinosaursTrueDinosaurs Giganotosaurus]]'', probably because of the "sauropod confusion" in pop-culture.** '''Ankylosaurus:''' Shows up in "Death of a Dynasty" as the classic "ultimate tank dinosaur" in the climactic battle against the mother ''T. rex'' and easily winning the fight. However, it appears as the rather sluggish, small-brained loner traditionally depicted in paleo-art; moreover, its look is a bit inaccurate, having armour resembling more that of its relatives the [[UsefulNotes/PrehistoricLifeAnkylosaurs nodosaurs]] and with some resemblance with its smaller cousin ''[[UsefulNotes/PrehistoricLifeAnkylosaurs Euoplocephalus]]'' (the numerous ankylosaurian species tend to be confused a lot in pop-culture).** '''Hadrosaurs:''' WWD portrays ''Anatotitan'' as the representative of the duck-billed dinosaur group, but has only a very small role (it serves mainly to give a prey to the hungry mother tyrannosaur). It may seem an aversion, since the name ''Anatotitan'' was known only by scientists and dino-fans before that; but don't forget that ''Anatotitan'', as a synonym of ''Edmontosaurus'', is technically the hadrosaur which used to be identified as one of the two iconic pop-cultural hadrosaurs: ''Anatosaurus'' aka ''Trachodon''. The reason behind the choice of ''Anatotitan'' instead of the other iconic duckbill ''Parasaurolophus'' in the main WWD is not an aversion of the trope, but just scientific accuracy: the former did live alongside the "rex", unlike the latter which lived slighty earlier. However, we can see another non-stock duckbill in Late Cretaceous Asia (in the aforementioned "Giant Claw" episode): ''[[UsefulNotes/PrehistoricLifeHadrosaurs Saurolophus]]'' (the species Ducky from ''LandBeforeTime'' resembles the most, to make things clear); this choice is correct since ''Saurolophus'' is the most common Asian hadrosaur in fossil record.** '''Iguanodon''': This is the main dinosaur portrayed in the Early Cretaceous episode of WWD (more precisely in the pterosaur-dedicated "Giant of the Skies"); and then some sort of "iguanodont" species appears as ''[[StockDinosaursTrueDinosaurs Giganotosaurus]]'' main prey in ''Chased by Dinosaurs'' (another example of MisplacedWildlife: iguanodonts of that size are unknown in that habitat). Interesting that, few months after, Disney's movie ''Disney/{{Dinosaur}}'' (very successful at the time if the box-office is concerned) portrayed this dinosaur as the main character. [[DuelingMovies Both shows]] have perhaps the merit to have done justice to one of the best-known and most important dinosaurs in Paleontology (much like the aforementioned ''Allosaurus'' example).** '''Triassic dinosaurs:''' WWD chose to show the two most well-known dinosaurs from that period, ''Coelophysis'' and ''Plateosaurus'': this has brought to another case of MisplacedWildlife, since the latter shows up in North America instead of Europe. However it might become justified; maybe ''Plateosaurus'' ''did'' live in North America as well (it's been found in Greenland at least), since all land masses were reuned in one single supercontinent in the Triassic, allowing dinos to wander freely in the world. ** '''Protoceratops''': This small, hornless ''Triceratops'' relative (the most scientifically-known Asian dinosaur) appears in the same episode in which ''[[StockDinosaursTrueDinosaurs Velociraptor]]'' and ''[[UsefulNotes/PrehistoricLifeBirdlikeTheropods Therizinosaurus]]'' are portrayed, and it isn't shown chasing an egg-robbing ''[[StockDinosaursTrueDinosaurs Oviraptor]]'' to defend its nest as most paleo-artists used to represent ''Protoceratops'' in the past. Walking With did the research again: there isn't any proof of this thing today. ** '''Sea Reptiles:''' WWD portrays Late Jurassic marine reptiles: an ichthyosaur (non-stock ''[[UsefulNotes/PrehistoricLife Ophthalmosaurus]]''), a plesiosaur (non-stock ''[[UsefulNotes/PrehistoricLife Cryptoclidus]]''), and ''Liopleurodon'' (which WWD ''made stock'' with its depiction of it as the [[UpToEleven most fearsome killing machine of all times]]). The two stock Late Cretaceous sea reptiles, ''Elasmosaurus'' and ''Tylosaurus'' show up in ''Sea Monsters'' (the latter identified as "giant mosasaur"); the same programs showed again ''Liopleurodon'' in the Jurassic ocean.\\\\One special note to marine reptiles from the original WWD: species that appear in "Cruel Sea" are called by their scientific names (''Opthtalmosaurus'' and ''Cryptoclidus'') instead of being called with the names of their groups (Ichthyosaurs and Plesiosaurs respectively). However, this may make watchers thinking the former are ''synonyms'' of the latter. Just as examples, let's translate the quotes ''"Ophthalmosaurus were the most ancient marine reptiles"'' as ''"Ichthyosaurs were the most ancient marine reptiles"'' and ''"the swimming style of Cryptoclidus will disappear after the Great Extinction of the dinosaurs"'' as ''"the swimming style of plesiosaurs..."'' and so on.** '''Pterosaurs:''': The original WWD shows the two most famous pterosaurs after ''Pteranodon'': ''Rhamphorhynchus'' in "Cruel Sea" and the huge ''Quetzalcoatlus'' in "Death of a Dynasty". However pterosaurs make one of the most averted groups, since most pterosaurs in the whole Walking With series were poorly-known before that; but above all, the "king" of them all is not a stock one, but the obscure-at-the-time ''[[UsefulNotes/PrehistoricLifeNonDinosaurianReptiles Ornithocheirus]]'' (oversized). Some people may wonder why this animal did not become stock after that, unlike ''Liopleurodon'': maybe due to the "pterosaur confusion" existing in pop-culture (most pterosaurs in Fictionland are MixAndMatchCritter rather than actual species).

* '''The missing ones:'''** '''Ornithomimids''': In spite of being the traditionally most iconic toothless theropods, they don't appear neither in the original WWD (which had the possibility to show ''Ornithomimus'' or ''Struthiomimus''), nor they appear in "The Giant Claw" (even though the famous-after-Jurassic-Park ''Gallimimus'' was available). The role of bird-like dinosaur in the latter is taken by the less-famous ''Mononykus''.** '''Archaeopteryx and Compsognathus''': Probably too small to get the attention of the producers... despite their habitat (Late Jurassic islets in what is now Europe) being portrayed! A chance was missed to portray accurately two famous but misunderstood animals in popular culture... "Compies" were not the ZergRush-like [[KillerRabbit killers]] seen in ''Jurassic Park 2'' but harmless insect/lizard hunters; and they would appear rather nice-looking if alive today, perhaps even suitable as household pets. While "Archies" were not active fliers which lived in trees as often shown; they were more like other feathered theropods such as the dromeosaurids (it was recently found they even had ''sickle-claws''), and they probably were only gliders or weak fliers (if at all). ** '''Pachycephalosaurs''': Neither WWD nor its continuations did feature any bone-headed dino. Despite this, they were quite cool animals, both because of their look and their probable social behaviour (ramming each other head-to-head or head-to-flank). However, some scientists now argue they didn't ram at all in RealLife (even so, they'd still be interesting guys to show anyway). *** It's not like they weren't in the right locations and time periods to include bone-heads either. They could easily have squeezed ''Pachycephalosaurus'' into "Death of a Dynasty", and ''Homalocephale'' or ''Prenocephale'' could've appeared in "The Giant Claw".

* '''Non-Mesozoic Animals''':** '''Walking With Beasts''': This is a rather good representation of the mammalian and avian fauna which lived after the dinosaurs (although far from being complete, see UsefulNotes/PrehistoricLife). Of course there are the [[StockDinosaursNonDinosaurs iconic]] Woolly Mammoth and ''Smilodon'', but there are also many other [[UsefulNotes/PrehistoricLifeMammals amazing creatures]] like the huge Indricothere, early whale ''Basilosaurus'', giant ground sloth ''Megatherium'' and giant flightless bird ''[[UsefulNotes/PrehistoricLifeBirds Gastornis]]''. Even ''Smilodon'' is a partial aversion, because it is actually the bigger, more robust South American species ''S. populator'' that is portrayed, rather than the stock North American ''S. fatalis''.*** Among hominids there are obviously the Neanderthals and Cro-Magnons, but the main characters are ''[[UsefulNotes/PrehistoricLifeMammals Australopithecus]]'' and thus may be considered a partial aversion.** '''Walking With Monsters''': Another good ensemble of animals, this time those living before the dinosaurs. The only animal which already was well-known among large audiences is ''Dimetrodon'', and many dino-fans have been pleasantly surprised to see things such as ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Anomalocaris]]'', ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Haikouichthys]]'',''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Cephalaspis]]'', ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Arthropleura]]'', ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Lystrosaurus]]'', ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Euparkeria]]'' and so on in a medium that is not an illustrated book. There is a strong RuleOfCool influence however, with many interesting animals not appearing, and the show generally does prefer showing the most impressive creature rather than the most significative in history of evolution (as said in the main page). ** '''Sea Monsters''': We can see many more creatures other than the aforementioned stock sea reptiles, such as the giant armoured predatory fish ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Dunkleosteus]]'', [[UsefulNotes/PrehistoricLifeOtherExtinctCreatures a giant orthoceratid]], the giant turtle ''[[UsefulNotes/PrehistoricLifeNonDinosaurianReptiles Archelon]]'', the long-necked pre-dino reptile ''[[UsefulNotes/PrehistoricLifeNonDinosaurianReptiles Tanystropheus]]'', the giant fish ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Xiphactinus]]'' and the two-horned rhino-like mammal ''[[UsefulNotes/PrehistoricLifeMammals Arsinoitherium]]''. But the most remembered is perhaps the giant shark ''[[UsefulNotes/PrehistoricLifeOtherExtinctCreatures Megalodon]]''. ** '''Walking With Cavemen''': All the most important species of ancient hominids show up, but the beasts are very few and are identical to those of WWB... with the amazing exception of the giant gorilla-like ''[[UsefulNotes/PrehistoricLifeMammals Gigantopithecus]]'' as a OneSceneWonder.